Roller-skate



(No Model.)

J. G. HAY/ENS.

. ROLLER SKATE. No. 345,781. Patented July 20, 1886.

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UNITED STATES PATENT OFFICE.

JOSEPH G. HAVENS, OF TBENTON, NEW' JERSEY.

RO LLER-S KATE.

SPECIFICATION forming part of Letters Patent No. 345,781, dated July 20,1886.

Application filed March 7, 1885.

To all whom it may concern.-

Be it known that I, J OSEPII G. HAVENS, a citizen of the United States,residing in the city olTrenton, county of Mercer, and State of NewJersey, have invented a new and useful Improvement in Roller-Skates, ofwhich the following is a specification.

My invention relates to improvements in that part of the mechanism of aroller-skate whereby the rocking motion of the skate imparted by thefoot of the wearer in describing a curve with the skate is regulated.This mechanism of mine is shown in the accompanying drawings, in whichdrawings similar letters of reference indicate similar parts.

' In the drawings, Figure 1 shows a front view of my mechanism. Fig. 2shows a side view, and Figs. 3 and 4 show a view in detail of theoscillating axle-support and plate F.

In Fig. 1, A is a view in section of the footpiece of the skate. To thisis fastened the plate B, provided with bearings B B. These bearings, forthe sake of elearness, are omitted in Fig. .1, but are indicated simplyby dotted lines. To these hearings is pivoted the oscillatingaxle-support 0. Through this support C runs the axle 0, upon which arehung the rollers D D. Fixed firmly in the plate B are posts E E. Movingfreely up and down these posts is the plate F. A separate top view ofthis plate is shown at Fig. 4-. It is, as shown, provided with holes oropenings, through which the posts E E pass. Between this plate F and theplate B, and preferably one encircling each post E, I place the springsG. These springs are, as shown, spiral, and for their manufacture Ipreferably employ the best of steel.

Fig. 2 shows a side view of the same mechanism, save that the roller Dis omitted, being indicated simply by dotted lines. It also shows theopening 0, through which the axle 0 passes. The top of the axlesupport Gis provided with a square level face, 6, resting upon the plate F. A topview of this face 0 is shown in Fig. 3. In this face are notches 0, cutto clear the posts E when the oscillation occurs.

Fig. 4. shows a top view of the plate F. The operation of my mechanismis as follows: When the skate is describing a curve,

Serial No. 158,089. (No model.)

the foot-piece A is thrown out of level, and one side or the other, asthe curve is to the right or left, is pressed nearer the floor. Therollers I) being. upon the floor, and requiring for the safety and comfort of the skater to rest firmly upon the floor, and, in fact, keptthere by his weight, this brings the plate F more firmly against theside of the face 0 nearest the inner part of the curve. This pressurecauses the plate F to travel up the posts E, compressing the springs G,allowing a yielding or oscillating side motion to the skate, and at thesame time retaining the outer rollers of the skate firmly upon thefloor. As will be seen by an inspection of the drawings, Fig. 1, thebearing-surfaces of the face G be ing between the posts E E, theretraction of the plate F compresses both of the springs G G, insurin ggreater firmness, and also an equal wear upon both springs, whether inuse the greater number of curves be made either to the right or to theleft. I also use a peculiar contrivanee in pivoting the axlesupport G tothe hangers B B. In one of the hangers I out a thread, B, as showninFig. 2. Through the opening in one hanger I pass the screw 13'. Thisscrew passes through an opening, 13, in the axle'support, (indicated bydotted lines,) and into the other hanger, and, being screwed into thethread in the other hanger, is thereby kept in place. The opening Bbeing round, and the bod-y of the screw being round, this pivots theaxle'support C in the hangers.

\Vhat I claim as my invention, and desire to secure by Letters Patent,is-

1. In a roller-skate, the springs G G, in (30111- bination with theplate F, for the uses and purposes set forth.

2. In a roller-skate, the springs GG, in combination with the plate Fand face 0, combined and arranged as shown and described.

8. In a roller-skate, the plate B, provided with the posts E E, incombination with the springs G G and plate F, substantially as shown anddescribed.

4. In a roller-skate, the plate 13, provided with the posts E E, incombination with the springs G G, plate F, and face 0', substantially asshown and described.

5. In a roller-skate, the plate 13, provided 7. In a roller-skate, theaxle-support 0, provided with the face 0', having the notches IO 0 0,all forthe uses and purposes mentioned and described.

JOS. e. I-IAvnNs.

Vitnesses:

ARTHUR BUCHANAN, M. I. BUCHANAN;

